Display device

Abstract

A display device includes a first electrode extending in a first direction, a second electrode spaced apart from the first electrode in a second direction, light emitting elements that are disposed on the first electrode and the second electrode, a first connection electrode electrically connected to a first end of the light emitting elements, and a second connection electrode electrically connected to a second end of the light emitting elements. The first connection electrode includes a first main portion disposed on the first electrode and in electrical contact with the light emitting elements, a first bypass portion partially spaced apart from the first main portion, and first connection portions electrically connecting the first main portion to the first bypass portion.

What is claimed is: 
     
       1. A display device comprising:
 a first electrode extending in a first direction; 
 a second electrode spaced apart from the first electrode in a second direction; 
 light emitting elements that are disposed on the first electrode and the second electrode; 
 a first connection electrode electrically connected to a first end of the light emitting elements; and 
 a second connection electrode electrically connected to a second end of the light emitting elements, 
 wherein the first connection electrode includes:
 a first main portion disposed on the first electrode and in electrical contact with the light emitting elements; 
 a first bypass portion partially spaced apart from the first main portion; and 
 first connection portions electrically connecting the first main portion to the first bypass portion. 
 
 
     
     
       2. The display device of  claim 1 , further comprising:
 a bank layer extending in the first direction and the second direction to surround an emission area including the light emitting elements, 
 wherein the first bypass portion is disposed on the bank layer. 
 
     
     
       3. The display device of  claim 2 , wherein
 the second connection electrode includes:
 a second main portion disposed on the second electrode and in electrical contact with the light emitting elements; 
 a second bypass portion partially spaced apart from the second main portion and disposed on the bank layer; and 
 second connection portions electrically connecting the second main portion to the second bypass portion, 
 
 the first bypass portion does not overlap the first electrode, and 
 the second bypass portion does not overlap the second electrode. 
 
     
     
       4. The display device of  claim 3 , wherein
 each of the first main portion and the second main portion extends in the first direction, and 
 each of the first bypass portion and the second bypass portion extends in the first direction. 
 
     
     
       5. The display device of  claim 3 , wherein
 the first main portion and the second main portion are partially disposed on the bank layer, and 
 each of the first connection portion and the second connection portion is disposed on the bank layer. 
 
     
     
       6. The display device of  claim 3 , wherein each of the first bypass portion and the second bypass portion is disposed to partially overlap the emission area. 
     
     
       7. The display device of  claim 6 , wherein each of the first and second bypass portions and the first and second connection portions does not overlap the light emitting elements. 
     
     
       8. The display device of  claim 3 , further comprising:
 a sub-region spaced apart from the emission area in the first direction, wherein 
 the first main portion and the second main portion extend to the sub-region, 
 the first connection electrode further comprises a first contact portion disposed in the sub-region and electrically connected to the first electrode, and 
 the second connection electrode further comprises a second contact portion disposed in the sub-region and electrically connected to the second electrode. 
 
     
     
       9. The display device of  claim 8 , wherein
 the first main portion, the first connection portions, and the first bypass portion are electrically connected to the first contact portion, and 
 the second main portion, the second connection portions, and the second bypass portion are electrically connected to the second contact portion. 
 
     
     
       10. The display device of  claim 3 , wherein the first connection electrode further comprises a third connection portion spaced apart from the first connection portion and electrically connected to the first main portion and the first bypass portion. 
     
     
       11. The display device of  claim 3 , further comprising:
 a first bank pattern extending in the first direction and overlapping the first electrode; and 
 a second bank pattern extending in the second direction and overlapping the second electrode, wherein 
 the first bank pattern overlaps the first main portion without overlapping the first bypass portion, and 
 the second bank pattern overlaps the second main portion without overlapping the second bypass portion. 
 
     
     
       12. The display device of  claim 2 , further comprising:
 a third electrode spaced apart from the first electrode in the second direction with the second electrode interposed therebetween, wherein 
 the light emitting elements include:
 a first light emitting element disposed on the second electrode and the third electrode; and 
 a second light emitting element disposed on the first electrode and the second electrode, 
 
 the first connection electrode is electrically connected to a second end of the second light emitting element, and 
 the second connection electrode is electrically connected to a first end of the first light emitting element. 
 
     
     
       13. The display device of  claim 12 , further comprising:
 a third main portion disposed on the third electrode and in electrical contact with a second end of the first light emitting element; 
 a fourth main portion disposed to be spaced apart from the first main portion on the second electrode and in electrical contact with a first end of the second light emitting element; 
 a second bypass portion partially spaced apart from the third main portion; 
 a second connection portion electrically connected to the third main portion, the fourth main portion, and the second bypass portion; and 
 a third connection electrode comprising a third connection portion electrically connected to the third main portion and the second bypass portion. 
 
     
     
       14. The display device of  claim 13 , wherein each of the second connection portion, the third connection portion, and the second bypass portion is disposed on the bank layer. 
     
     
       15. The display device of  claim 12 , wherein
 the first connection electrode further comprises a first contact portion in electrical contact with the first electrode, and 
 the second connection electrode further comprises a second contact portion in electrical contact with the second electrode. 
 
     
     
       16. A display device comprising:
 electrodes extending in a first direction and spaced apart from each other in a second direction, the electrodes including a first electrode, a second electrode spaced apart from the first electrode in the second direction, a third electrode disposed between the first electrode and the second electrode, and a fourth electrode spaced apart from the third electrode in the second direction with the second electrode interposed therebetween; 
 light emitting elements disposed on the electrodes spaced apart from each other in the second direction; 
 a bank layer extending in the first and second directions and surrounding an emission area in which the light emitting elements are disposed; and 
 connection electrodes disposed on at least one of the electrodes and including a main portion in electrical contact with the light emitting elements, wherein 
 the connection electrodes include:
 a first connection electrode including a first main portion disposed on the first electrode; 
 a second connection electrode including a second main portion disposed on the second electrode; 
 a third connection electrode including a third main portion disposed on the third electrode and facing the first main portion, and a fourth main portion disposed on the first electrode and spaced apart from the first main portion in the first direction; 
 a fourth connection electrode including a fifth main portion disposed on the fourth electrode and facing the second main portion, and a sixth main portion disposed on the second electrode and spaced apart from the second main portion in the first direction; and 
 a fifth connection electrode comprising a seventh main portion disposed on the second electrode and spaced apart from the second main portion in the first direction, and an eighth main portion disposed on the third electrode and spaced apart from the third main portion in the first direction, and 
 
 the first connection electrode includes a first bypass portion disposed on the bank layer to be partially spaced apart from the first main portion, a first connection portion disposed on the bank layer to electrically connect the first bypass portion to the first main portion, and 
 a second connection portion partially disposed in the emission area and electrically connecting the first bypass portion to the first main portion. 
 
     
     
       17. The display device of  claim 16 , wherein
 the third connection electrode further comprises:
 a third bypass portion disposed on the bank layer to be partially spaced apart from the fourth main portion; 
 the third main portion partially disposed in the emission area; 
 a third connection portion electrically connecting the fourth main portion to the third bypass portion, and 
 a fourth connection portion disposed on the bank layer and electrically connecting the fourth main portion to the third bypass portion, and 
 
 the fourth connection electrode further comprises:
 a fourth bypass portion disposed on the bank layer to be partially spaced apart from the fifth main portion, 
 the fifth main portion partially disposed in the emission area; 
 a fifth connection portion electrically connecting the sixth main portion to the fourth bypass portion, and 
 a sixth connection portion disposed on the bank layer and electrically connecting the fifth main portion to the fourth bypass portion. 
 
 
     
     
       18. The display device of  claim 16 , wherein the fifth connection electrode further comprises:
 a fifth bypass portion disposed on the bank layer to be partially spaced apart from the eighth main portion; 
 the seventh main portion disposed on the bank layer; 
 a seventh connection portion electrically connecting the eighth main portion to the fifth bypass portion; and 
 an eighth connection portion partially disposed in the emission area and electrically connecting the eighth main portion to the fifth bypass portion. 
 
     
     
       19. The display device of  claim 16 , further comprising:
 a sub-region disposed in the first direction of the emission area, wherein 
 the first connection electrode further comprises a first contact portion electrically connected to the first main portion and in electrical contact with the first electrode in the sub-region, and 
 the second connection electrode further comprises a second contact portion electrically connected to the second main portion and in electrical contact with the second electrode in the sub-region. 
 
     
     
       20. The display device of  claim 19 , wherein the light emitting elements include:
 a first light emitting element disposed on the first electrode and the third electrode and having a first end in electrical contact with the first main portion and a second end in electrical contact with the third main portion; 
 a second light emitting element disposed on the second electrode and the fourth electrode and having a first end in electrical contact with the fifth main portion and a second end in electrical contact with the second main portion; 
 a third light emitting element disposed on the first electrode and the third electrode and having a first end in electrical contact with the fourth main portion and a second end in electrical contact with the seventh main portion; and 
 a fourth light emitting element disposed on the second electrode and the fourth electrode and having a first end in electrical contact with the eighth main portion and a second end in electrical contact with the sixth main portion.